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Excavator parts broken Hammer is slow and powerless, is there really no way?

Edit:Kyotechs Machinery Co.,LtdUpDate:Mar 21, 2018

1, check whether the pilot valve excavator parts wear, or valve core impurities caused by abnormal pressure.

2, in the excavator parts (such as crushing hammer, hydraulic shears, etc.) full stroke operation, overflow state, check the selection of valve core overflow pressure is set 24.5MPa, if not, need to reset the pressure or replace the spool.

3, check whether the P1 bypass valve wear, excavator parts of the internal plunger slip is good, such as abnormal, can be cleaned or replaced.

4, test P1, P2 unloading proportional valve and the diameter of the valve and the current value of the pilot two times is normal, such as abnormal, the need to replace the proportional valve.

5, in the excavator parts (such as crushing hammer, hydraulic shears, etc.) full stroke operation, high throttle, the measurement of digging bucket excavation when the pilot pressure is above 2.1MPa. If not, check the pilot control valve.

6, check the purchase of the pressure sensor is broken or damaged, if necessary to timely treatment, replacement.

7, take apart the inspection of the multi-channel valve on the diameter of the spool, excavator parts spool and related port overflow valve is not open and close, there are impurities, spring has no impairment. If so, it needs to be replaced in a timely manner.